leoleosuper t1_j7niqac wrote
Reply to comment by rockmsedrik in TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
Learn how to go to the bathroom without sight. Helps a lot.
rockmsedrik t1_j7njjtm wrote
Ah yes, the touch-n-feel method, I too have stubbed my toe a few too many times!
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